Cash-register with a single set of keys.



R. T. PISCIGELLI.

CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLIOATION FILED JULY 2, 1909.

1,061,924. E Patented May 13, 1913.

12 SHEETS-SHEET 1.

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R. T. PISGIOELLI.

CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLICATION FILED JULY 2, 1909.

1,0 1,924, Patented May 13, 1913.

12 SHEETS-SHEET 2.

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APPLICATION FILED JULY 2, 1909.

1,061,924, Patented May 13, 1913.

12 SHEETS-SHEET 3.

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R. T. PISGIGBLLI.

CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLICATION IILED JULY 2, 1909.

' 1,061,924, Patented May 13, 1913.

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R. T. PISCICELLI.

CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLICATION FILED JULY 2, 11109.

1,061,924. Patented May 13, 1913.

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CASH REGISTER WITH A SINGLE SET OF KEYS. APPLICATION FILED JULY 2, 1909.

1,061,924. Patented May13, 1913.

12 SHEETS-SHEET 6.

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R. T. PISOICELLL- CASH REGISTER WITH A SINGLE SET OF KEYS. APPLICATION FILED JULY 2, mos

1,061,924. Patented May 13, 1913.

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R. T. PISGIGELL I.

CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLIOATION FILED JULY 2, 1909.

1,061,924. Patented May13,1913.

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R. T. PISCIOBLLI.

CASH REGISTER WITH A SINGLE SET OF KEYS.

' APPLICATION EILED JULYV2 1909.

Patented May 1-3, 1913.

12 SHEETS-SHEET 9.

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R. T. PISGIOELLI. CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLICATION FILED JULY 2, 1909.

1,061,924. Patented May 13, 1913.

12 SHEETS-SHEET 10.

AT ORN YS CDEJJMBIA PLANOGRAPH co wAsmua'ron. 0.1:.

R. T. PISGIGELLI.

7 CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLICATION FILED JULY 2, 1909.

1,061,924. Patented May 13, 1913.

12 SHEET8-SHEET 11.

IIIORNE'YS COLUMBIA PLANOGRAPM 150., WASHINGTON, n. c.

R. T. PISCIGELLI. CASH REGISTER WITH A SINGLE SET OF KEYS.

APPLICATION FILED JULY 2, 1909.

1,061,924. Patented May 13,1913.

12 SHEETS-SHEET 12.

coLilMllA PLANOGIAPII 60.. WASHINGTON. mc.

ROBERTO TAEGGI PISCICELLI, OF FLORENCE, ITALY.

CASH-REGISTER WITH A SINGLE SET OF KEYS.

Specification of Letters Patent.

Patented May 13, 1913.

Application filed July 2, 1909. Serial No. 505,729.

T 0 all whom it may concern:

Be it known that I, ROBERTO TAEGGI PIS- CICELLI, civil engineer, a subject of the King of Italy, residing at Via Pietrapiana N. 46, in the city of Florence, Italy, have invented certain new and useful Improvements in Cash-Registers \Vith a Single Set of Keys, of which the following is a specification.

The present invention refers to new and useful improvements in that class of cash registers having a single set of keys, viz., only ten keys corresponding to the figures from 0 to 9, and-by means of which numbers having any amount of figures can be summed up, for the arrangement is such that the key which is pressed downthe first time puts into motion the mechanism for registering the higher units of the number; the key which is pressed down secondly puts into motion the mechanism for registering the units of the order immediately .beloW, and so on. Therefore, it will be understood that if the machine has been arranged for registering values having a certain number of figures, each time that valuesrequiring a lower numberof figures are to be registered, the key corresponding to zero has to be premed down as many times as thereare missing units in the number. The same, key board can also beutilized for indicating the several sale departments up to ten departments altogether, without increasing the number of the keys, the indication of the department preceding in this case the figure which corresponds to the higher unit, or following the figureof the lowerunit of the value recorded.

The machine is arranged in such a way that, while the diiferent keys which correspond to the figures of the number to be registered are successively lowered,- an indicatc-r shows the cashier through an opening the figures of the number which he is composing, so that if by mistake a wrong key is lowered the cashier is immediately informed thereof and can correct the mistake at once, for the lowering of the keys is only preparatory to the registration and therefore by turning a correcting lever .everything can be brought back to the initial position, without the summing apparatus havingbeen displaced and the registration can again be started with the composition of the value to be summed up.

The summing apparatus is actuated only vhen the opera-ting handle provided in the indications after the indicator of the com- 1 position has been brought back to the initial position. At the end of the rotation of the lever the drawer, which must be kept closed for operating the machine, is also automatically opened.

The annexed drawings show by way of example a" machine of this kind capable of registering numbers having 5 figures, or

sales amounting .up ,to $999.99 and of indicating ten different sale departments. Said machine is provided with a printing apparatus for the-ticket which is issued to the purchaser and for the duplicate tape which remains in the machine for the control, and

it is provided-with the indicators which through windows provided in the front and rear wall of the machine show the purchaser and the cashier the amount of each sale, land with a drawer opening automatically at each operation for receiving the sum pal Figure 1 is a vertical section of the machine which shows'a key with the corresponding value sector. Fig. 2 is a plan view'of the key board with the shaft actuating the value sectors; Figs. 3, 4', 5, 6, 7 and 8 are details of the device for producing the movement ofthe said actuating shaft. Fig. 9 is. a vertical section which shows ,the device for correcting the mistakes in ,the'composition of the values. Fig. 10 is a side view of the machine, with the drawer in section and the gears transmitting the movement of the operating handle. Figs. '11, 12, 13, 14, 15 and 16 are details of the computing drums of the summing apparatus. Figs. 17, 18, 19, 20 and 21 show different phases of the summing apparatus. Fig. 22 shows the connection between the computing drums, the printing'disks, the disks of the summing apparatus and the disks of the indicator of the amounts cashed. Fig. 23 shows the device for raising the value sectors. Fig. 24 is a plan view of a section passing through the axes of all the shafts of the indicator of the values composed; however for the sake of clearness the shafts are shown a little more spaced than in actual use. Fig. 25 shows in plan view a section passing through the axes of the shafts of the summing apparatus, of the printing device and of the indicator of the amounts cashed in which view however for the sake of clearness the axes are shown farther apart than when in actual use so that the toothed wheels do not come into contact. Figs. 26 and 27 illustrate the device for carrying over the tens. Fig. 28 shows the device for stopping the printing disks in the position corresponding tozero. Fig. 29 shows the device for stopping the disks at the end of the revolution. Fig. 30 shows the details of the device for stopping the movement of the indicators and actuating the shutters. Fig, 31 is a side view of the machine with the cover removed to show the printing device.

The machine, Figs.- 1 and 10, rests upon a socket 1, which contains the drawer 2 and viewed from the front viz. from.

the cashiers side who is attending to the registration it shows below a horizontal row of ten keys 3-; a little higher a longitudinal slot 4, through which appear the indications of the summing apparatus and of the counter; another longitudi- V 6' through which the cashier reads the.

nal. slot ,5 through which appear the figures corresponding to the key depressed, and lastly at; the upper part the window amount cashed each: time he has 'made a registration. The back side of the cash register, viz.-the side turned toward the public, has a vertical wall having a single window in its upper-part in correspondence with the indicators of the amounts cashed. 1 v i -The key board, Figs.'1 and 2, is similar to thatiof the typewriting machines and comprises a row of ten keys --3 carried by levers '8, each revolving loose around a-horizontal shaft 9 located inside the machine at the front part of same. The free ends of the arms 10 of the levers inside the machine end-with small planes 11 which are all at the same distance from the shaft 9, because the arms 10 are all parallel with each other and of: the same length. Each arm carries a 7 horizontal bar 12-- which extends trans- .stop -15 against which the arms 10 rest.

In proximity to the rear wall of the machine is a shaft 1G, on which is mounted an oscillating frame the transverse front bar 17- of which rests above the row of small planes l1, so that lowering any one of the ten keys produces the same degree of oscillation of the said frame. The frame (see also Figs. 5 and 8) carries at one of its sides a pawl 20 which engages a ratchet wheel 21 with six teeth and keyed to the shaft 16. A spring 18 secured to the transverse rear side 19 of the frame tends to keep it always with its side -17--- against the planes l1-, so that after a key is lowered and released, the

oscillating frame is brought back to its place by the spring 18, while the key is brought back by the spring 14.' The angle, however, by which the pawl 20 causes the wheel 2! and with it the shaft 16 to rotate when'any of the keys is entirely lowered and the front bar -17,' lowered, does not amount to but to of a revolution, as shown inFigs. 5 and 8, so that when the key takes up again its position of rest, the pawl 20 would not be able to ride over a tooth of the wheel 2l, but the shaft 16 completes the rotation corresponding to a tooth or to a 1, of revolution while the key goes up again and the transverse front bar 1'7- is lowered, and 5 ing at the end of the transverse rear bar -19 of the oscillating frame." When a key, and therefore the transverse rear bar 19 of the frame, is lowered, the pawl 22 rides upon the wheel 23' carried by the shaft"16, which rotates under the action of the other pawl 20 and'performs a twelfth part of a revolution in the direction indicated by the arrow. l/Vhen the key is released and the transverserear bar -19- of the oscillating frame is raised, the

pawl 20 rides idle on its wheel 21, which on the contrary moves forward because it is carried by the shaft "l6, which under the action of the'pawl and of the wheel 23 is caused to rotate for a twelfth part of a revolution. Thus the shaft 16- can be turned the sixth part of a revolution by lowering one of the keys and letting" it rise again, which is sufficient to bring into operative position one of the cams -27 arranged in a spiral line and at equal intervals on-the shaft 16. In the example shown in the drawing there are altogether six cams.

In order to prevent the'shaft l6 from 22 is carried by a l 100 I rotating a greater degree than the prescribed one, under the shock of the pawl -20 there is provided a hook -28, Figs. 4 and 7, which can rock around a shaft -29 placed above the shaft 16 and which with its tail rests upon the rear cross-bar l9- of the oscillating frame, so that as soon as the key is lowered the hook falls upon a ratchet wheel -30 having six teeth and it leaves the same only when the key starts its return motion.

Upon the shaft 13-, Fig. 1, the axis of which is coincident with the axis of the cylindrical surface formed by the bars -l9r, are mounted six arms -31-- which at their lower end carry a sector 32- with eleven angular teeth and at their upper end a toothed sector 33 which engages with a pinion 34 having also eleven teeth. An antagonistic spring 35 secured to a lug -36- of the arm -31 tends to rotate the lower sector 32 forward. However, the forward motion of the same is prevented by a stationary pawl --37 rocking around the shaft 29- and having on its tail a lug -38- projecting downward. The cams 27 are located in the same planes with the lugs -38-, so that each sixth of a revolution of the shaft 16 brings a cam -27 in contact with one of the lugs 38 which is raised, and frees therefore the corresponding toothed sector 32--, which thus can move forward under the pull of the spring 35. Now it has to be remarked that, when any of the keys are lowered, the shaft 16 rotates the sixth part of a revolution and the first of the cams 27-, on the left hand side, frees the corresponding sector. This sector in the machine shown in the drawing indicates the sale departments, so that the first key to be lowered is that on the head of which is marked the letter corresponding to the sale department. The forward motion of the arm 31- is limited by the tooth -39 which projects downward at the fore end'of the sector 32 and it strikes against the bar 12' which has been raised by the key. It is to be remarked that the tooth 39 is not directly carried by the sector 32, but by an arm 40 fastened to the side of the same and rotatable around a pivot -41-. A spring -42 keeps the arm in its normal position against a stop provided for this purpose on the sector -32-. In order to secure an accurate position of the arm 3lat the end of the stroke, the various parts of the device are arranged in such a way that the stationary pawl -37 leaves the sector 32 before the bar 12 has reached its full height, or rather before the key is completely lowered; therefore. when a key is completely lowered, the pawl of the sector which is actuated is raised and the sector rests with its tooth -39- against the corresponding bar 12. Afterward when the key starts again to rise, or rather when the bar 12 is lowered, the lug 38 moves downward and the pawl 37 strikes against the sector 32- in the space between two successive teeth; so that during the lowering of the bar 12, and at the moment in which the tooth -39- is freed from said bar, the sector again moves forward a little until the pawl comes into contact with the corresponding tooth.

From the aforesaid it will be understood that each time a key is lowered the toothed sector -33 is rotated, the position of the bar 12 causing a movement of the toothed sector proportional to the value of the figure marked on the head of the key. The toothed sector 33 carries in its movement the pinion 34- with which is connected a disk 43 hearing marked on its periphery the figures from O to 9 or the letters of the departments which appear through the window 5-; moreover the same has a. blank space of equal width'which corresponds to the position of rest, altogether eleven spaces, viz. as many as there are teeth in the pinion 34- and in the sector -33, so that a sector has to rotate by a space in order to cause the cipher naught to appear. After having obtained with the first lowering of a key, and the displacement of the corresponding sector the indication of the department, the first figure of the value to be registered is got by a second lowering of a key, which acts on the second of the arms 31 beginning from the left hand side, because it is the second cam 27 which raises the lug 38 which lies in its plane. It is vtobe remarkedthat if the second key lowered is the same lowered the first time, the bar 12'- would strike against the tooth --39- of the first arm which, after the lowering of same, had moved forward a. little and thisiis the reason why the tooth 39 has been mounted on the oscillating arm 40, which allows of the tooth being raised by the bar without the sector -32 being displaced, which remains in its place, while the remaining sectors are brought successively to their places.

It could happen that the tooth -39 by striking forcibly against the bar -12 would rebound and thus cause the toothed sector 32, and with it the disk 43- to move backward one or more'teeth. In order to prevent this cause of mistakes each disk 43 is connected to a toothed wheel -44, against which abuts the free end of an arm -45, Figs. 1 and 24, oscillating around a shaft -46-; there are as many arms -45 as there are disks 43, viz. six altogether, and all these arms move all together and also with another arm -47-. see Fig. 9, which is near one of the ends of the shaft -46-', around which they oscilimpulse in opposite direction, the teeth of the wheel will meet the end of the arm 't5- which enters between same and thus prevents the back rotation of the disk.

The disks -43 show the cashier the letters and the figures corresponding to the keys he has depressed. If he notices a mis take, he can easily correct it in the following way: In proximity to the right hand side of the machine is a correcting lever 49 which projects out of the casing through a vertical slot. The correcting lever turns around a shaft 50 and carries at its lower end a toothed sector 51 which rests against a stop -52. The lever is kept in this position by an antagonistic spring 53. The shaft 16 carries at its right hand end a toothed wheel 54 which lies in the same plane with the sector 51-. The toothed wheel 54- has five teeth and a space between the first and last tooth corresponding to a sixth tooth which is missing and when the shaft -16 is in the position of rest, viz. when none of the keys has been lowered, the teeth of the sector -51, when the lever 49 is rotated, passes into the space between the first and the last tooth of the wheel 54- without moving same. If, on the contrary, one or more keys have been lowered, or rather one or more of the sectors 32 have moved forward, thenby rotating the lever 49-- the sector 51 is brought in engagement with the teeth of the wheel 54- and causes the latter to rotateas much as it is necessary for causing the shaft 16--, to resume its position of rest again. Then by releasing the lever 49 the spring -53 returns it to the initial position, while the teeth of the sector 51 pass freely in the empty space between the first and the last tooth of the wheel 54- without communicating any further movement upon the shaft 1 The lever 49- during its movement besides bringing the shaft 16 back to its initial position, has to accomplish still another operation, viz. it must raise all the arms 31 which were lowered, bringing them back into their initial position. For this purpose at the ends of the shaft 13- are fastened two arms -55 connected with a cross bar 56 which passes beneath all the lugs 36 projecting from the arms 3l. Besides that at the right end of noer924 the same shaft -13 is fixed a piece which at one side ends with a bent arm 57 and on the other side is formed as a portion of a toothed wheel 58, which by means of another intermediate toothed wheel 59 is moved by the toothed sector 60- which rotates around the shaft 50- connected with the lever 69. It will be understood that by lowering the lever -49 the two arms and the cross bar 56 connected therewith are rotated also and the cross bar 55- meets successively all the lugs -36 of the arms 31- which have been lowered, and bring them back to the initial position, while when the lever 49- returns to the position of rest, the crossbar 56 moves away from the lugs, leaving the arms 3lfree to be again lowered. Howeverfthe backward motion of the arms 31 would not be possible until the arms -45 abut with their ends against the teeth of the wheels 44. This stop is taken away by the lug -57 which, when the lever 49- is lowered, strikes against the arm -t7 and causes the arms +45 to rise leaving free the wheels 1 44-. \Vhile the correcting lever 49 is in an intermediate position it is necessary to avoid starting a registration by lowering any one of the keys. For this purpose to the side of the toothed sector -51 is fastened a piece 6l-, the lower edge of which forms an arc of circle having the center on the axis of the shaft 50. As soon as the rotary movement of the lever 4$) has been started, this piece will rest with its lower edge against the transverse front bar 17 of the oscillating frame and prevent the raising of the said bar and therebyalso the lowering of any one of the keys. The stationary pawl 37 rides-freely over the sectors 32 while they are moving backward, but do not allow them to move forward when they have reached again the initial position and thus all return ready for starting a new registration.

.After having lowered six keys, the ma chine is ready for accomplishing the registration and the sum of the value which by the disks 43 is shown behind the window 5. The registration is accomplished, Fig. 10, by causing the handle 62-. which projects from'tlie right side of the machine, to make two revolutions and to put into motion the devices described hereinafter. On the pivot of the handle 62 is mounted, a toothed wheel '63, which engages with a toothed wheel 64, the diameter of which is twice greater, so that two complete revolutions of the handle correspond to a single revolution of the wheel trt, which on its turn transmits the movement to a twin wheel (35. With the wheel 63 engages a stationary pawl -66-- which prevents the backward motion of the handle 62-. With the wheel -65 is connected a disk -67-' the pe riphery of which has the shape shown in Flg. 1O and which serves for actuating the drawer in the manner described hereinafter. An oscillating angle-lever is mounted on an end of the shaft 9, and is kept in place by an antagonistic spring 68-;the lower arm 69 of said lever is straight and abuts with its end against a stop 70 provided at the rear wall of the drawer 2-. The upper arm -71- is bent at its free end which is shaped as a tooth 72. When the machine is at rest with the drawer closed, all the parts are in the position shown by Fig. 10; on turning the operating handle the disk 67- rotates in the direction indicated by the arrow and beneath the tooth -72 passes freely first the pro jection 73, then when the arc 74r which connects the base of the projection 73 with the top of the tooth 75, arrives at the tooth 7 2, the tooth --72 begins to be raised and with it the arm -69-, until at the moment when the tooth '72 arrives above the edge of the tooth 75 the end 69 abandons the stop--70 and the drawer remains free to come out.

The drawer is pushed out by a spring 76 wound around a rod -77-, on which slides a fork -78- projecting from the bottom of the drawer andagainst which acts'the spring 76 In its course the drawer'is guided below by the rollers ":and en the top bYthe'rOlIers SO L A5:

soofxz as the drawer hasmomeout -pushed by theispring s 'i the arm v6) drops be''f hindsth'e rear-"wall of. the: drawer'iandthe tootliz,'f"72: falls into the notch comprised between theteeth 75 and at the end of the course its low'er Y face I against the nppen-faee'of the topthfiiflsfr-q there} fore it Kismet-possibletol rotate the handle" 62: ':further, nntilre-by pushin'g the' 'dr'awer back and. thereby raising: themrm --%69 the'-:tooth '"'-72 isdisengaged' from' the notch in tlX6-"dlSl '-74 and brought-anthe positionfshown by the F ig;"'10.i Besides that as "soon as the rotation of the "handle has-been-startedfandas tongi as the same is not completed, no displacement of the-shaft pose a catchis provided oscillating around the direction indicated by :the arrow to gether with'a toothed'wheel towhi'ch it isEfastened;- The other' tooth 5 "in' the-"position of restlies in front of 'notch' provided on the edge of a disk -87"' k'eyed' causes the tooth 85 to come out of the notch of the disk 87- thus freeing the shaft 16-. An antagonistic spring causes the tooth 84 to rest against the edge of the disk 86 during the revolution of same and then to fall into the notch, which corresponds to the position of rest. It should be remarked that as soon as the rotation of the shaft 16- has been started, the continuous edge of the disk 87 comes beneath the tooth 85, so that the tooth 84- is compelled to remain in the notch of the disk 86- and it is no longer possible to rotate the handle 62. A pin fixed to the disk 86'displaces at each revolution of the wheel 64- the hammer -88- which pulled by an antagonistic spring causes the bell 89 to ring.

The summing apparatus is formed (Fig. 1) by the oscillating arms -31 mounted upon" the shaft '13'- and by a series of drums, which hereinafter shall be termed computing drums, whichare mounted upon the shaft and eachio f which e0m-.- biaatien w'ith the aforesaid "oscillating arms causes One-"bf the disks of -the" apparatiis'toinoveforwardf These disks ap ear am-ga the? epeniag' and the:

105 Peti ion er-' the? corresponding bsqma'aag" movement "ofthe disks proportional'to the amt -com'pi1ting;driiin ,fFigs. 11a) '16,

censistsiin'adisk 90" keyed (m nseam j by'rneansbf a ferru l'e A fiat spring 93- placed between the' two disks causes the "disle QO to drag with it when rotating thedisk"-91 when thereis no "outer.-

resistance which prevents this movement. The fixed disk 90 is provided with nine radial 'slots 94', in each" cf which is placeda sliding pin .95- which on the side't'urnd' 'towar'd the disk 91 carries a projecting pivot .96 which enters an 'anhave thesanie an ular width which is such that each of them comprises eight of the radial grooves --94 of the fixed disk nular' groove cut the face of tliedisk 9 1} turned toward the' 'disk 90-. T his groove is formedby four arcs, two of which the drum and are located entirelywithin the revolution of the operating handle Fig. 17,

-90. The two inner arcs of the groove are in such a position and the projectingpivots 96 arefixed on the pins 95 in such a manner that when the pivots are in one of the said inner arcs -97' the pins do not project out from the periphery of radial grooves which have the same length as the pins, but, on the'contrary, when the pivots, are on the outer arcs 97"-, the pins project with their ends from the periphery of the drum. The shape of the groove 9797- clearly shows that during a complete revolution of the disk 91-- with respect to the disk 90 all the pins come out twice and are retracted twice into their grooves. I

Now on the outer face, Figs. 17 to 21, of each of the movable disks 91 are provided two stopping blocks -98, which lie in the plane of a lug 99-- projecting from the corresponding oscillating arm 31. The said lug advances moreor less beneath the stopping block according to whether the arm 31' is in a more or less advanced position. However, after having lowered the oscillating arms and before starting the the stopping blocks have not yet come into contact with the lugs, they meet them after the disks have rotated a certain distance, Fig. 18,. so that when the handle is rotated, the shaft -50-- begins to move and carries in its movement the fixed disks 90 together with the movable disks --91. In the moment in which the stopping blocks 98 meet the lugs -99, the arms 31 begin their back motion in the manner described hereinafter, and'it will be understood that the lug of that arm which was the most advanced will rest the longest against the corresponding stopping block. Now while the stopping block, Fig. 19, rests against the corresponding lug, the movable disk -9lcannot follow the rotation of the fixed disk -90*, it therefore lags behind and into the outer are 97 of the annular groove pass as many pins as there are units in the figures which the corresponding disk of the summing apparatus has to register.

The pins as they come out from the radial grooves engage, Fig. 22, first with the toothed wheels -100 which communicate the movement to the disks 101 of the summing apparatus by means of the toothed wheels l02- connected with the same, and with which they engage continually, and then with the toothed wheels 103, from which the movement is transmitted, as it will be explained hereinafter, to the printing apparatus and to the disks 104-- of the indicators, which show the public and the cashier the amount of the sum cashed, and provisions are made to the end that in the are comprised between the contacts with the two wheels -100- and 103 are not more than eight pins. The movable disk is again stopped in the following manner: Upon a shaft -105 parallel with the shaft 50 are mounted arms 106 each of them in correspondence with a drum, and further an arm 1O7- which with its end rests upon the edge of a cam -108 keyed on the shaft 50-. When all the pins have ceased to act upon the toothed wheels, which move the summing apparatus the indicators andthe printing part, the arm 107 is released by the cam 108 and the arms 106- rise, Fig. 20, and meet the stopping blocks 98- stopping the movement of the disks 91- until all the pins which were still in the radial grooves have come out and are then again retracted except the last pin, Fig. 21, which remains projecting, because, as previously stated, the width of each of the arcs of the annular groove is such that it com rises only eight pins and when eight of t em are in the inner arc,

one of them still remains in the outer arc.

When the revolution of the shaft 50- has begun and as soon as the stopping block 98 meets the lug 99 and causes the first pin to come out, the'lastpin which had remained outside is retracted again and as many pins come out as there are units in the figure to be registered. If the figure to be registered is a nine, it would seem at the first sight that it is not possible to cause the nine pins to come out, but this is not the case, because at the moment the eighth pin comes out, the first pin has already passed beyond the point of contact with the wheel 103 and has finished acting on the mechanism, so that it can be retracted while the ninth pin is coming out, which on its turn acts on the two transmission wheels '-100 and -103- and then it remains projecting at the end of the operation, viz. when the piece l06 has caused the other pins to reenter. If, on the contrary, a naught must be registered, it happens that the piece 106- meets the stopping block 98 and causes the last pin which was projecting to reenter just before it engages with the wheel -100 and in this moment the first pin which comes out has already passed beyond the )OlIltof contact with the wheel 103 an therefore it does not act in any way on the registering mechanisms. It will be easily seen that while the disk 90 in a registration performs a revolution, the disk 91- performs only half a revolution and therefore there are two stopping blocks 98 of which in a registration it is always the same which acts in all the stops. The other stopping block enters into action only for the succes sive registration.

The transferring of the tens from one order of unity to the other, each time that one of the disks of the summing apparatus has moved forward by ten places, is obtained by means of a pin -109, Figs. 11, 25, 26 and 27, which permanently projects from the periphery of the computing drum and is connected with the fixed disk in such a way that it can deviate to the left of its plane and place itself in correspondence with the toothed wheel 100, Figs. 22 and 26, which corresponds to the units of the next higher class. The displacement to the left hand side is obtained by means of an arm --110oscillatin around the shaft 105. In the head of this arm is provided an elongated slot 111, through which passes the shaft -112, the diameter of which corresponds to the width of the said slot. A pin 1I3- pushed by a spring located in a eavity provided in the arm 110 keeps said arm fixed in the position in which it is brought. Normally the said arm is turned toward the front, Fig. 26, viz. away from the computing drum, however its head turned, toward the front has a curved surface 114-, against which slides a finger 1.15 which rotates with the disk 101 with which. it is connected. Therefore, each time that the disk -10lhas performed a complete revolution, the finger 115- causes the arm 110- to move toward the computing drum, Fig. 27. The part 116- .of the head of the arm 110 turned toward thecdrum has aiwedge'd shape so=thatiit dist. places laterally the pin 109;.t'.- ;wv-hen;- iti meets samei onzits way and keeps it.di splaced in such-. a a wa as to act on- Etlie. toothed. wheel T-l00i.i of-.tlie i'summin-g. device .of :the; units of the. .nxt :higher ordr which: follows; .on.

540' the left, causing. theasame to z-moveif'o'rward by; a itootlr;i said displacement having; been: effected the .pin .-*1019.T is Y released: and -,re-:

sumes; itsnormal position. At thesame time a. projecting nose- ..-.117 which comes out, from theperipherymf thefixed: disk 90 meets on itst-urn thelieadofthe arm +1104? and raises it away; from the drum until itis: again brought to its position lof. rest, in

which it is in the path of tlie.finger-,.115-.-.

- .On'zthe difierent summing. drumsthezpins. 10 9 which produce the .passage of the tens,-.are disposed in such ,away that they.

work; one after the other:beginningfrom. the

units of the lower order,.and this for; giving 5 the possibility of. accomplishing. the passage ofja umtyin; the disksofthehigher order,-

whenitis exactlytheypassage -of;a unit-y on the disk-of the lower, orderproduced by the pin f109 which causes tliesame to ready composed, is connected with a toothed wheel -4l4- with ten teeth, and a space corresponding to an eleventh tooth which is missing. In the same plane of these wheels. and mounted upon a shaft parallel with the shaft which carries the indicating disks, are as many toothed wheels l18- with ten teeth and a space corresponding to a tooth which is missing, each connected with a wheel -1l9 mounted upon the same axis and engaging with a wheel l20 which by means of another wheel -121 receives the movement through a toothed sector 1'22- keyed on the shaft 50. It will be understood that when the arm -3lis lowered, the wheel 44- rotates and therefore in the space corresponding to the missing tooth of the wheel -l18 comes a tooth of the wheel 44-. As soon as the revolution of the wheel -119 has begun, the wheel -118 meshes with the wheel -44- and causes rotation of the same until it is brought back in the position of rest shown in Fig. 23, or rather until it meets the space of the missing tooth, whereon the wheel -118 completes its revolution, while its teeth pass freely in the said space without further moving the wheel 44t which has brought back the arm 3l to its original position.

All the parts are arranged in such a manner that when the sector 122- meets the wheel -121, the stopping block -98- strikes against the lug 99- which stops theumovement of the corresponding disk TQITTJLThe Wheels 44, while the pawls abut against their teeth, even through-- turning the operating handle +62-.-, would not allow. of the arms -31 being moved backward, but they are freed in thefollowing way: From the side of one of the pawls 45 Figs. 23 and 24, projects; a pin 123 which rests in a notch provided in the periphery of a disk 124, which; at every two revolutions performed by the-handle -62 performs one revolution. As'soon as the rotation of the disk --124,-has begun, the pin l23 comes outfrom the notch and passes over the outer edge of-the disk thus raising the pawls --.45 which free the wheels -'l4 for thewhole time of t-heoperation, so that the same can return to naught without hindrance of any kind. At the end of the revolution of the handle the notch of the disk -l24- comes again beneath the pin l23-.and the pawls.45- again prevent any back motion of thewheel 44 when the keys are touched.

From the aforesaid it clearly appears how the computing drums by means of the couple of wheels -l00 -l02 impart the movement to the disks 101 mounted on the shaft -125 rotating same to a degree proport-ionalto the value of the figure to be registered and how. is aecomplishedthe transfer of the tens from one order of units to the units of the next higher order. The machine. shown in the drawing allows the registration of numbers having five figures, vizup to $999.99, however the summing apparatus registers sums of seven figures, namely up to 359999999. Therefore, there are two more disks 10l-, the two first ones on the left in Fig. 25, which are not directly actuated by the summing drums. The second of said disks is caused to move forward by a unity in the following way: The wheel with the finger 115 of the third disk 101 is fastened on the ri ht hand face of same and moves a thick toothed wheel 126-, with which engages a toothed wheel 127 having ten teeth similar to the wheels 102-. This wheel is connected with the second disk 101 which each time it performs a revolution, by means of the finger 115 provided on its left hand side, causes to move forward a wheel having ten teeth 128 which wheel is mounted on the shaft 112 and connected with a disk 129 which carries one tooth only. This tooth at every revolution meets another wheel having ten teeth 127 connected with the first disk and therefore it causes the said wheel to move forward by one unity.

On the same shaft 125-,' on which are mounted the disks 101 of the summing apparatus are mounted also the disks130 of the numerator, to which the movement is transmitted by an arm 131 which rotates together with the shaft 50-. At every revolution the arm 130 causes to move forward by a tooth the toothed wheel 132 with ten teeth. The wheel 132 is loose on the shaft -112 and permanently engages with a twintoothed wheel -133- which is mounted loose on the shaft125 and connected with the first of the disks 130 of the numerator which in Fig. 25 is shown on the right'hand side. The same disk 130- is connected with a disk -134 which carries a finger, which at each revo lution causes to move forward by atooth a toothedwheel 135 having ten teeth and mounted loose on the shaft 112. The thickness of this wheel is twice that of the disk 134 and it engages also permanently with a toothed wheel 136 connected with the second disk of the numerator, which therefore moves forward by a tooth each time that the first disk has performed a revolution. The movement of the third disk is produced in a similar way and the following manner: The disks 101 and the disks 130- do not fit exactly on the shaft 125, but they leave an annular groove in which rotate pins 137 projecting from the shaft 125 in radial direction and all in a straight line. From the wheels 102 133- 136 connected with the indicating disks 101 and -130 project in the inner part of the aforesaid annular groove other pins 138 parallel with the axis of the shaft -l25. Now the shaft 125 can slide axially in its bearings which are provided in the side walls of the machine, and also in the sleeves of the disks and of the wheels which it carries and is kept in the normal position of rest shown by the figure by a spring 139. The end which projects on the right hand side is provided with a transverse pin -140 which is placed in a groove provided in the sleeve which contains the spring -139. The said groove has such a shape that by turning the shaft by means of a key, acting on its square end, the pin sliding on the groove and overcoming the resistance of the spring 139 causes the shaft to shift toward the right hand side and brings the pins -l 37 back in the plane of the pins -138, so that by turning the shaft 125 the pins 137 meet the pins -138 and drag with them all the disks out of place and at the end of the revolution, viz. when the pin l40 falls again into the groove, all the disks are brought back to naught. V

The pins --95 of the summing drums after having driven the disks of the sum ming apparatus act, as stated hereinbefore, upon the printing disks and the drums of the indicators of the sum cashed in the following manner: On the shaft 141, Figs. 22 and 25, parallelwith the shaft -50 in front of each of the summing drums is placed a sleeve which carries three wheels, of which one l03-- having ten teeth receives the movement from the pins 95-, another 142 having also ten teeth is that on which is wound the linked chain l43 by means of which the movement is transmitted to the drums 104 of the indicators, and a third one 144 which is in the plane of the sectors -145 fastened to the disks 90, serves for bringing back to naught, as explained hereinafter, the printing disks and the drums of the indicator before the pins 95- transmits the values after every registration. Each one of the sleeveswhich carries the group of the aforesaid three wheels is mounted upon a tube which at its left hand'end carries one of the printing disks --ll6. There are as many tubes as sleeves with groups of three wheels except one which is carried directly by the shaft l41. All these tubes are passed one upon the other loose 

